Georg Ostrovski
Georg Ostrovski is an AI researcher whose work spans game-theoretic dynamics and deep reinforcement learning. He published a study of maps inspired by game theory in 2013. His research includes PixelCNN exploration for Atari, quantile methods for reinforcement learning and image generation, and research on learning from observational data. In August 2025, he contributed insights and support to Genie 3; as of October 2026, he leads DeepMind’s Reinforcement Learning Engineering team, serves on Amfileon’s Scientific Board and holds a mathematics PhD from the University of Warwick.
- Now at
- Google DeepMind and Amfileon
- Works
- 33
- Citations
- 36,064
- h-index
- 14
- Badges
Publication numbers from OpenAlex, as of 22 October 2026.
Timeline
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2013
Maps inspired by game theory
In 2013, he presents a one-parameter family of continuous, piecewise-affine, area-preserving maps of the square inspired by a dynamical system in game theory.
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2017
PixelCNN for Atari exploration
In 2017, he coauthors Count-Based Exploration with Neural Density Models, which uses PixelCNN pseudo-counts with reinforcement-learning agents and improves results on several hard Atari games.
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2018
Quantile networks for games and images
In 2018, he coauthors Implicit Quantile Networks for Distributional Reinforcement Learning, which uses quantile regression to approximate return distributions and improves performance on the 57 Atari games. He also coauthors Autoregressive Quantile Networks for Generative Modeling, which extends PixelCNN with quantile regression and reports image-modeling results on CIFAR-10 and ImageNet.
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2021
Passive learning in deep RL
At NeurIPS in 2021, he coauthors The Difficulty of Passive Learning in Deep Reinforcement Learning with Pablo Samuel Castro and Will Dabney. The paper identifies function approximation and fixed data distributions as key factors in learning from observational data.
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2023
Quantile credit assignment
In 2023, he coauthors Quantile Credit Assignment, which uses return quantiles to separate environmental randomness from the controllable effects of an agent’s actions.
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2024
Quantile TD convergence
In 2024, he coauthors An Analysis of Quantile Temporal-Difference Learning, which proves convergence to the fixed points of a related family of dynamic programming procedures.
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August 2025
Insights for Genie 3
In August 2025, he contributes insights and support to Genie 3, Google DeepMind’s general-purpose world model for interactive environments.
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As of October 2026
Reinforcement learning engineering lead
As of October 2026, he leads DeepMind’s Reinforcement Learning Engineering team and serves on Amfileon’s Scientific Board. He holds a mathematics PhD from the University of Warwick.
Career
- Since 2015Google DeepMindTeam Lead
- NowAmfileonScientific Board member
- 2016–2023Google
Education
- University of WarwickPhD in Mathematics
Sources and credits
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- Dynamics of a Continuous Piecewise Affine Map of the Square
- DeepMind papers at ICML 2017 (part three) — Google DeepMind
- Count-Based Exploration with Neural Density Models
- DeepMind papers at ICML 2018 — Google DeepMind
- Implicit Quantile Networks for Distributional Reinforcement Learning
- Autoregressive Quantile Networks for Generative Modeling
- The Difficulty of Passive Learning in Deep Reinforcement Learning
- Quantile Credit Assignment
- An Analysis of Quantile Temporal-Difference Learning
- Genie 3: A new frontier for world models — Google DeepMind
- When markets break, this strategy accelerates - inside Amfileon's Crisis-Alpha machine — Opalesque
- Home | Amfileon


